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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1965 | 2 |
| 1966 | 10 |
| 1967 | 18 |
| 1968 | 21 |
| 1969 | 25 |
| 1970 | 19 |
| 1971 | 28 |
| 1972 | 35 |
| 1973 | 47 |
| 1974 | 75 |
| 1975 | 57 |
| 1976 | 51 |
| 1977 | 97 |
| 1978 | 120 |
| 1979 | 157 |
| 1980 | 180 |
| 1981 | 197 |
| 1982 | 217 |
| 1983 | 262 |
| 1984 | 379 |
| 1985 | 399 |
| 1986 | 425 |
| 1987 | 521 |
| 1988 | 524 |
| 1989 | 577 |
| 1990 | 716 |
| 1991 | 755 |
| 1992 | 689 |
| 1993 | 812 |
| 1994 | 716 |
| 1995 | 693 |
| 1996 | 720 |
| 1997 | 694 |
| 1998 | 607 |
| 1999 | 574 |
| 2000 | 614 |
| 2001 | 577 |
| 2002 | 590 |
| 2003 | 523 |
| 2004 | 480 |
| 2005 | 484 |
| 2006 | 493 |
| 2007 | 504 |
| 2008 | 522 |
| 2009 | 539 |
| 2010 | 523 |
| 2011 | 549 |
| 2012 | 556 |
| 2013 | 526 |
| 2014 | 531 |
| 2015 | 532 |
| 2016 | 482 |
| 2017 | 457 |
| 2018 | 439 |
| 2019 | 411 |
| 2020 | 451 |
| 2021 | 321 |
| 2022 | 35 |
| 2023 | 7 |
| 2024 | 39 |